Coring device for baled goods



Jam 19, 1954 R. T. MCANDREW CORIG DEVICE FOR BALED GOODS Filed Feb. 7, 1951 F IG.4.

" TTORNEY.

. carry out vsuch analyses.

Patented Jan. 19, 1954 YoomNo DEVICE Foa BALED Goons Richard T. McAndrew, Braintree, Mass., assigner to United States Testing Company, Incorporated, Hoboken, N. J., a corporation of New York Application February 7, 1951, Serial No. 209,840

. V1 n y This invention relates to coring devices used for obtaining samples of baled goods, and in particular is directed to improvements in the structure of such devices whereby the size of the-sampleremovedis drastically reduced thereby to provide great economies in the expense of sampling. 'It -has been the practice heretofore in obtaining samples of baled goodssuch as wool, to employva motor driven coring device, which penetrates the bale to a substantial depth thereby to obtain a large core (diameter of approximately 2-3") of the goods. vvIn the case of wool the coreis removed from the coring tube and sent tothe laboratory for appropriate analytical procedures in order .to ascertain its composition. Several major problems are, presented in carrying out suchcoring operations. One, is the fact that the coring tool has atendency to jam with resultant difficulty in obtaining an adequately representative sample ofthe goods in the bale. Another, is that the devices heretofore used' have coring tubes of very large diameter, resulting in the removal of largecores of the wool with consequent very substantial `losses of the wool removed, andalso loss of time entailed in processing the wool in the laboratory in carrying out the analysis thereof. i

This invention is directed to improvements in the structure of coring devices, particularly the cutting tube thereof, whereby it now becomes possibler rapidly to obtain a small representative sample of the wool contained in a bale; and, accordingly, it is one of the primary objects of this invention to provide the art with a coring device thatremoves a substantially smaller sample than has heretofore been possible to obtain.

Another object of the invention is to provide a coring device that removes ya substantially smaller sample than has been required heretofore, and thereby to effectuate drastic economies in time consumed in the laboratory in carrying lout the analyses of the samples, as well as greatly to minimize the loss vof the wool, per se, required to `In its fundamental aspects theprimary object of this invention is achieved byr av device comprising a coring tube of relatively small cross'seetion provided with a cutting edge at one end' thereof, the internal diameter of which'cutting edge is slightly smaller than that of the body of said tube thereby allowing'the core, as it passes the cutting edge and moves upwardly in the tube, to expandrsufliciently to overcome the'jamming heretofore encountered.

Another feature of this invention is achieved v 5 Claims. l(ci. vs -425.2)

by this novel coring the sample of the wool, as it is removed from the bale, may conveniently be collected in a receptacle therefor carried by the coring device. ingly, it is another of the primary objects of this invention to provide a coring device which is adapted to receive and collect the cores removed from the bale.

That primary objective is achieved by means ofV a coring device having a coring tube, provided with the cutting edge describedabove, that is operatively connected to a communicating housing for a removable receptacle adapted to receive the cores taken from the bale being sampled.

The device of this inventicnmay be driven by an appropriate power element, such as has heretcfore been used for driving the coring tubes. In view of the drastic reductionin the diameter of the core being removed and the ease of its upsection, showing the structure of Fig. 1 in assem.-

bled relation. v

Fig. 3 is a view of the cutting edge of the tool shown in Fig. 2, taken on the line 3-,-3 thereof. Y

Fig. 4 is a view partially broken away, of the sample collecting receptacle (after removal fromthe housing "therefor constituting part of the coring device) showing it filled with the collected.

sample. Y

Fig.` 5 is a View, partially in section, showing the means of afiixing the coring tube to the sample collecting housing. v

Fig. 6 is aview partially in section, showing another form of coring tube, as for example a tapered tube, the same being assembled with the cutter and other members as shown in Figs. 1, 2 and 5.-

Referring more particularly to the drawings, the numeral l0 designates a coring tube of unie, form diameter, l2 the sample collecting housing 'or reservoir, and I 4 the power element that drives the .aforesaid combination of `coringtube andy device which comprises'v means constituting part of the structure whereby.

Accordhousing. The coring tube I is made of steel or any other appropriate material and carries, at its lower end I8, a removable cutting unit or member 20. As shown, the cutting unit comprises a small cylindrical or tubular body 22 having a tapered shank 24, a shoulder 26, and a circular cutting tiprorsblade,welded' to the'bodyfZ 2*, as.; at 32. Thecuttingfedge of maybe of anyape propriate configuration. The shank 24 tapers upwardly from the shoulder 26 so that it may bei'` inserted and held frictionally and snugly engaged... Within the cooperatively ared portion 36"within the lower end of the coring tube,= .the bottomaedge. 38 of which tube abuts the shoulderfz:

The housing I2 comprisesaf cylindrical-ly# shaped main ,body member 4U, and a cover 42. Body member 40 and the cover .142; areV provideda: with means, respectively, to engage the coring tube I2 and the power element I4 so that rotation" of I4 drives the coring tube. Housing I2 has arbasefMprovided with-an axially disposed-oriiice.: 46 to'receive and engage theupperend :of thezcor; ingtube. The A"cover :42 is. .provided with means .A tozengage'the A.drive shaft of I4. The `cover 42 .isv securedfto the .body'member 40, by means., of .the-r cooperatively disposed pinsor studs.48 to engage the bayonet' slotsK 5min vthe housing;

Aashovvn irr Figs.v2.and 5,- .the engagement .of the coring tube with the body memberfxdil fis: eectedfv by means.:- of bushing. 56,. .extending through .I6,fand having internalv threadsi which.. receivethe vexternal threads 60.7on the upper endv ofrthecoringltubes. The cover 42 lhasi an axially: disposed ibushingthat engages the drive shaftv 64 of the powerelement.

An'inverted can onreceptacle' 66 is'positioned in the-housing.1i2.'so. that the open'end Bithereof iskin direct communication with vthe coring tube.V The receptaclen 66 i is vsecured against movement by-the .pressureof bushing 62 against the base 1i! 1- of.-'the receptacle while the open end 68 bof thev receptacle presses againstJthe... resilient floor memberfnf. The. floor 12 may be madeof 'a base.- of sponge rubber as at .14 anda top layer of sheet rubber; fas-ata'IT." In lcarrying out, a"coring.of a 5, balewith. the device, .the operator lfiold'sthestrucev Y ture by any Yconvenient handle not .shown in" de tailliaiiixed to the power "element I4'fland prof' ceeds toffdrill? or ,core the bale; As the .'cut``v tingeunitpentratesl the bale; the core ascendsithe tubeandenters the receptaclef The linternal v diameter of thecutting .unitiZ iis less than the internal-.diameter of. the tube I fthus. permitting the core easily` to move upward in tube; I0 Without-L jamming. In this way it is possible toi. collect a plurality of. cores from a bale which are deposited in thereceptaclesy When the desiredfnumberfof cores'of wool'ior--othermaterial is collected-fthe cover i 42S ist disengaged from the-body' member 4G21' the .receptacle 6B with its accumulation-ofv cores isremoved, Yand `the receptacle then covered lwith its closure 18. The receptacle containing the r samplenof thematerialy '80,as shown in liglr 4, isthenfsent to the laboratory for analysis.;

The objects and advantages'of Athis invention may also besachieved 'byfa structure Which'la taperedcoring-tube 90ishown:fin-Figsfifisuseclfj Tube-Suis affixed to they housingj I 2` irithesame wayxas is `tubezl 0.5 TubevliiseinternailyY flared 'at-Y its lower end 92 so as to engage the upwardly tapered shankof lthe cutting unit shown iin-"Figs l,- 2 'fand-3.

It: will be: understood fthat -the casef'ofascent of.VA thexcorein'sthemuheisf'achieved'- byxthee provision'. ofrafstructuresas.xlescribedor;exampley above, inf;75

eso

which the internal diameter of the cutting unit is slightly less than the internal diameter of the tube.

Thus, in the embodiments described the coring tube I6 is made of stainless steel having an outside diameter of inch, and an inside diameter of 'one-shalt V5(1/2)-1inch. The;insidediameten of the cutting Iunitl'2Ilis-0fl66 inch.' Thefcoref'thus can expand as it passes from the cutting unit into the Ytube with consequent release of pressure that otherwise Acauses-the sample to jam, especially when the core isof the markedly reduced diameterl'that.canzbe'obtained with this new device. The-markedly reduced diameter of the novel cory-ing devicerof`- this vinvention over the larger diameters of the coring tubes heretofore used providesrfforidrastic savings in the amount of wool removed .from a bale being sampled, and results insharpreconomies in the cost of analyzing the cores sent to the laboratory.

It'will also-be understood that a removable cutting `unit'may `be employedf in thisy device .whichI comprises a removable circular. cutting tip that-isf: heldzin operative engagement by a removable;x blade or tip-holding member vthat is engagedbyf' the lower or forward end of the coring tube..

It" will* bev understood thatf the-1 foregoing description of the inventionandthe ernloodiinent2 shown. is 'merely illustrative i off-the principles'.V thereof; and `accordingly the. :appendedfclaimsf are to` beA construed asl deiningthe invention-1fwithin the whole .spirit and'scope thereof.

I claim:

of saidcutting unit,.and la.:core collecting hous.-

ing oommunicatingwith the rearwendsoflsaid. tubesaid housing comprising a mainI bodyimeml beriof .substantially greater diameterrithan lrthe 1 aforesaid tube-:and ra removable cover.. member; said coverv 'member having fmeans 'fors engaging...

the drive shaft of a motor.

2. AInra `coring :device in the class--described,a

forwardly tapering tube, .a circular. cutterat. the forward endof'the tube', theV internaldiameterr of lthe cutter; being lessfthanthe :internalidiam-l eterof :the said tube,v and acore collecting nous ing of :substantially greater diameter 'thanLther aoresaidfztube carried :by the Vrear .endz-ofisaid.: tubefan inverted receptacle` set within thehousefing and over the'rear end of the tubeandzmeansz-A carriedfby said housingtforxengaging .a mechanismto rotate: the Lassemblage ofrthe. isaid .'tubef and .housing.

3. ina `coring;.deviceothe class .deseribed;.fa.c tapered vtube-,':\-said tubeftapering ftowardfitssfo --2 wardl end, la .removable cutting .unitn engaged said rforward end'fofithe tube',fsaid.1cuttingmunitw comprising a shank engageable;tvithinfsaid.tubef ,a bodyl portion, and azcircular; cutterccarriedaby said bodyv portion, and-a corecollecting vhousing .2 communicating :with Lthe: rear end'foff said z'tube', saidl housing comprising. a -mainfbody :meinberfof' f substantiallyY greater-diameter than .theaioresaid i tube and ,a .removable cover. member, said cover member havinga ybushing adapted to engage the4` drive shaft' of a motor.

@gina coring device-of theclass-describedya tube, and a circular cutterfat:theioiwardfendAK 5 being slightly larger than the internal diameter of the cutter, a core collecting housingt of substantially greater diameter than the aforesaid tube carried by the rear end of said tube, and

means carried by said housing to engage the 5 References Cited in the le of this patent UNITED STATES PATENTS Number Number Name Date Melberg Sept. 1, 1914 Kienzle et al. Apr. 11, 1944 Johnston et al. June 19, 1945 Le Compte et al. Dec. 27, 1949 FOREIGN PATENTS Country Date Switzerland Oct. 16, 1923 

